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31d2f08)
It fixes PR16338 (ICE when compiling very large two-dimensional array).
Differential Revision: http://llvm-reviews.chandlerc.com/D1043
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185080
91177308-0d34-0410-b5e6-
96231b3b80d8
virtual void EmitGPRel64Value(const MCExpr *Value);
virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
unsigned AddrSpace = 0);
virtual void EmitGPRel64Value(const MCExpr *Value);
virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
unsigned AddrSpace = 0);
+ virtual void EmitZeros(uint64_t NumBytes, unsigned AddrSpace = 0);
virtual void FinishImpl();
/// @}
virtual void FinishImpl();
/// @}
virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
unsigned AddrSpace = 0);
virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
unsigned AddrSpace = 0);
- /// EmitZeros - Emit NumBytes worth of zeros. This is a convenience
- /// function that just wraps EmitFill.
- void EmitZeros(uint64_t NumBytes, unsigned AddrSpace = 0) {
- EmitFill(NumBytes, 0, AddrSpace);
- }
+ /// \brief EmitZeros - Emit NumBytes worth of zeros.
+ /// This function properly handles data in virtual sections.
+ virtual void EmitZeros(uint64_t NumBytes, unsigned AddrSpace = 0);
/// EmitValueToAlignment - Emit some number of copies of @p Value until
/// the byte alignment @p ByteAlignment is reached.
/// EmitValueToAlignment - Emit some number of copies of @p Value until
/// the byte alignment @p ByteAlignment is reached.
case MCFragment::FT_Align:
// Check that we aren't trying to write a non-zero value into a virtual
// section.
case MCFragment::FT_Align:
// Check that we aren't trying to write a non-zero value into a virtual
// section.
- assert((!cast<MCAlignFragment>(it)->getValueSize() ||
- !cast<MCAlignFragment>(it)->getValue()) &&
+ assert((cast<MCAlignFragment>(it)->getValueSize() == 0 ||
+ cast<MCAlignFragment>(it)->getValue() == 0) &&
"Invalid align in virtual section!");
break;
case MCFragment::FT_Fill:
"Invalid align in virtual section!");
break;
case MCFragment::FT_Fill:
- assert(!cast<MCFillFragment>(it)->getValueSize() &&
+ assert((cast<MCFillFragment>(it)->getValueSize() == 0 ||
+ cast<MCFillFragment>(it)->getValue() == 0) &&
"Invalid fill in virtual section!");
break;
}
"Invalid fill in virtual section!");
break;
}
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSection.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
getOrCreateDataFragment()->getContents().append(NumBytes, FillValue);
}
getOrCreateDataFragment()->getContents().append(NumBytes, FillValue);
}
+void MCObjectStreamer::EmitZeros(uint64_t NumBytes, unsigned AddrSpace) {
+ assert(AddrSpace == 0 && "Address space must be 0!");
+ unsigned ItemSize = getCurrentSection().first->isVirtualSection() ? 0 : 1;
+ insert(new MCFillFragment(0, ItemSize, NumBytes));
+}
+
void MCObjectStreamer::FinishImpl() {
// Dump out the dwarf file & directory tables and line tables.
const MCSymbol *LineSectionSymbol = NULL;
void MCObjectStreamer::FinishImpl() {
// Dump out the dwarf file & directory tables and line tables.
const MCSymbol *LineSectionSymbol = NULL;
EmitValue(E, 1, AddrSpace);
}
EmitValue(E, 1, AddrSpace);
}
+/// EmitZeros - Emit NumBytes worth of zeros. Implementation in this class
+/// just redirects to EmitFill.
+void MCStreamer::EmitZeros(uint64_t NumBytes, unsigned AddrSpace) {
+ EmitFill(NumBytes, 0, AddrSpace);
+}
+
bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
StringRef Directory,
StringRef Filename, unsigned CUID) {
bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
StringRef Directory,
StringRef Filename, unsigned CUID) {